Complete the sentences with the prepositions in the box: In - On - Under - BehindBehind - Next toThe books arethe desk and I can read.The cat isthe sofa playing with its ballMy black shoes aremy bedMy brother isthe bathroom.Our house isthe supermarket.​

1) He said the documents hadn't bee signed yet.
2) Where is the key? Is it lost again?
3) I was given some very useful words of advice three days ago.
4) Are you sure the tickets were bought and we'll be able to start on time?
5) Look! A new tower is being built .
6) When the director entered the classroom, all the tests had been finished and lay on the teacher's desk.
7) They told me I couldn't get inside as the room had been cleaned 8) Where are such flowers grown? 9) When was Hamlet written?
10) While the cups will be put on the table I'll ask Jane to join us.